The role of the Heritage Office is to increase the levels of understanding, conservation and preservation of heritage by improving the status and perception of heritage within Dún Laoghaire-Rathdown.

Heritage is defined as:

Monuments: Archaeological Objects: Architectural Heritage: Heritage Objects: Flora:Fauna: Wildlife Habitats: Landscapes: Seascapes: Wrecks: Geology: Heritage Parks and Gardens: Inland Waterways:

It is the role of the Conservation Division to manage the protection and conservation of the historic built environment through Policy set out in the County Development Plan 2016-2016.